Grand Seiko 50th Anniversary Mechanical Limited Model, References SBGR065 and SBGR075

Released in October 2010 to commemorate the 50th anniversary of Grand Seiko, this timepiece houses the Caliber 9S65, a brand new self-winding mechanical movement. It comes with a 37mm diameter stainless steel case.

Two versions are available: SBGR065 (with silver dial) and SBGR075 (with blue dial). At 3 o’clock on the dial, the GS “Lion” emblem made of 18K yellow gold and “50th Anniversary” inscription are applied to commemorate the 50th anniversary.

Grand Seiko 50th Anniversary Mechanical Limited Model SBGR075
Grand Seiko 50th Anniversary Mechanical Limited Model SBGR075

Visible through the transparent sapphire crystal case-back, the rotating weight of the movement is also decorated with the “lion emblem” made of 18K yellow gold to give it an appearance suitable for a limited edition model. The steel case-back ring is engraved with “50th Anniversary 1960-2010” inscription and a serial number proving the limited number.

Launched in March 2010, the mechanical caliber 9S65 incorporates the SPRON610 hairspring, which offers superior impact resistance and magnetic resistance. This movement has a power reserve of 72 hours (about 3 days). Furthermore, from the movements that have passed the “Grand Seiko Standards Certification”, the company has selected and installed better movements that meet the standard of average daily difference of -1 second to +5 seconds (static accuracy).

Grand Seiko 50th Anniversary Mechanical Limited Model SBGR065

Spotlighting a silver color dial, Grand Seiko SBGR065 is a limited edition of 500 pieces. Grand Seiko SBGR075 is limited to 300 pieces and it features the emblematic blue color dial.

Technical details

Model: Grand Seiko 50th Anniversary Mechanical Limited Edition
References: SBGR065 and SBGR075

Stainless steel
Dual curve sapphire glass (with non-reflective coating)
Stainless steel case-back with sapphire glass (see-through back)
Water resistance: 10 ATM /100 meters
Magnetic resistance: Magnetic resistant watch (JIS magnetic resistant watch 1 type)
Case diameter: 37.0mm
Thickness: 13.3mm

Mechanical movement Caliber 9S65
Winding method: Automatic winding (with manual winding)
Time accuracy: Average daily difference -1 second to +5 seconds (static accuracy of this limited model)
[Normal caliber 9S65 average daily difference is -3 seconds ~ +5 seconds (static accuracy) * The standard accuracy when carrying is -1 second to +10 seconds per day]
Frequency: 28,800 vibrations / hour (8 vibrations / second)
Diameter: 28.4mm
Thickness: 6.0mm

Dial color
SBGR065: Silver
SBGR075: Blue

Stainless steel

Suggested retail price
SBGR065: 472,500 yen (450,000 yen without tax)
SBGR075: 472,500 yen (450,000 yen without tax)

Sales quantity
SBGR065: Limited to 500 pieces
SBGR075: Limited to 300 pieces

Other models from the Grand Seiko 50th anniversary collection:-